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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/m32r/include/asm/cacheflush.h
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#ifndef _ASM_M32R_CACHEFLUSH_H

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#define _ASM_M32R_CACHEFLUSH_H

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#include <linux/mm.h>

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extern void _flush_cache_all(void);

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extern void _flush_cache_copyback_all(void);

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#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)

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#define flush_cache_all()			do { } while (0)

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#define flush_cache_mm(mm)			do { } while (0)

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#define flush_cache_dup_mm(mm)			do { } while (0)

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#define flush_cache_range(vma, start, end)	do { } while (0)

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#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

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#define flush_dcache_page(page)			do { } while (0)

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#define flush_dcache_mmap_lock(mapping)		do { } while (0)

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#define flush_dcache_mmap_unlock(mapping)	do { } while (0)

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#ifndef CONFIG_SMP

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#define flush_icache_range(start, end)		_flush_cache_copyback_all()

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#define flush_icache_page(vma,pg)		_flush_cache_copyback_all()

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#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_copyback_all()

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#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()

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#else	/* CONFIG_SMP */

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extern void smp_flush_cache_all(void);

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#define flush_icache_range(start, end)		smp_flush_cache_all()

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#define flush_icache_page(vma,pg)		smp_flush_cache_all()

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#define flush_icache_user_range(vma,pg,adr,len)	smp_flush_cache_all()

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#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()

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#endif	/* CONFIG_SMP */

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#elif defined(CONFIG_CHIP_M32102)

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#define flush_cache_all()			do { } while (0)

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#define flush_cache_mm(mm)			do { } while (0)

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#define flush_cache_dup_mm(mm)			do { } while (0)

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#define flush_cache_range(vma, start, end)	do { } while (0)

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#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

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#define flush_dcache_page(page)			do { } while (0)

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#define flush_dcache_mmap_lock(mapping)		do { } while (0)

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#define flush_dcache_mmap_unlock(mapping)	do { } while (0)

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#define flush_icache_range(start, end)		_flush_cache_all()

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#define flush_icache_page(vma,pg)		_flush_cache_all()

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#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_all()

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#define flush_cache_sigtramp(addr)		_flush_cache_all()

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#else

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#define flush_cache_all()			do { } while (0)

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#define flush_cache_mm(mm)			do { } while (0)

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#define flush_cache_dup_mm(mm)			do { } while (0)

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#define flush_cache_range(vma, start, end)	do { } while (0)

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#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

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#define flush_dcache_page(page)			do { } while (0)

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#define flush_dcache_mmap_lock(mapping)		do { } while (0)

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#define flush_dcache_mmap_unlock(mapping)	do { } while (0)

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#define flush_icache_range(start, end)		do { } while (0)

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#define flush_icache_page(vma,pg)		do { } while (0)

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#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)

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#define flush_cache_sigtramp(addr)		do { } while (0)

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#endif	/* CONFIG_CHIP_* */

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#define flush_cache_vmap(start, end)	do { } while (0)

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#define flush_cache_vunmap(start, end)	do { } while (0)

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#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\

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do {								\

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	memcpy(dst, src, len);					\

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	flush_icache_user_range(vma, page, vaddr, len);		\

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} while (0)

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#define copy_from_user_page(vma, page, vaddr, dst, src, len)	\

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	memcpy(dst, src, len)

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#endif /* _ASM_M32R_CACHEFLUSH_H */

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